Rotary valve for explosion-engines.



' G. H. TAYLOR & H. E.- GOPFIN.

ROTARY VALVE FOR EXPLOSION ENGINES.

APPLICATION FILED JUNEZI, 1910.

1,59,539, Patented Feb. 11, 1913.

i I k fm emfawr flawardECo/fz'n I WW -W W useful Improvements ,in RotaryValves for can CECIL HAMELIN TA'YLU'Et-AND HOWARD E.

REYNGLDS IVEQEQB COMPANY, 033' DETROIT,

OBS, BY MESNE ASSIGNMENTS, T0

CGFFI'N, 0F DETROIT, EZIICHIGAN, ASSIGN- MICHIGAN, A COBPOBJATION (3FMEGHIGAN.

ROTARY VALVE FOR EXPLOSIUlll-ENGIWEQ.

T 0 all whom it may con/cm:

Be it known that we, CECIL l'lAhftELTN TAYLOR and lli'iwano E. COFFIN,citizens of the United States of America, residing at Detroit, in thecounty of Wayne and State of Michigan, have invented certain new andExplosion-Engines, of which the following is a specification,reterencebeing had therein to the accompanying drawings.

The invention relates to rotary valves of the disk type and consists inthe means employed for packing the valve as hereinafter set forth. a

In the drawings,-Figure 1 is a perspective view of the valve. Fig. Q isa section through the valve and its seat.

A is a disk valve, B is the rotary stem therefor and C is a portextending through the disk and adapted to register with a cooperatingport D in the valve seat E; It is usual with valves of this type tointroduce a liquid lubricant between the face of the valve and its seatwhich performs the additional function of sealing the valve. With thepresent construction a more effective seal is produced by the employmentof a solid material of a lubricating nature which is deposited on thecontacting faces otlhe valve and its This material is preferably in theform of inserts in either the face of the valve or its seat or both.

As'shown, F are the inserts of the solid lubricating material preferablygraphite. This may be of any form but are shown as filling'bearings inthe face of the valve.

G is an un'tilled recess preferably extending radially of the face ofthe valve, the function of which is to collect any surplusmaterialdeposited from the inserts F.

Specification of Letters Patent.

Fatented Feb. 11, M3.

1910. Serial lee. $39,207.

"With the construction described in operation, the material of theinserts is smeared upon the face ofthe valve and its seat with theresult that perfect contact is maintained. This will continue during theentire life of the valve, the coating being continually renewed as thecontacting surfaces wear. 4

What we claim as our invention is:

l. The combination of a ported valve seat and, a ported valve slidableover said seat, one of said members being provided with a restrictedrecess, said recess being closed at the bottom and ends to form a pocketfor receiving particles lodged between the slidingi; faces.

2. The combination of a ported valve seat and a ported valve slidableover said seat, said valve being provided with a restricted recess-inthe face thereof intermediate the valve ports, said recess being closedat the bottom and ends to form a pocket for regeiving particles lodgedbetween the sliding aces. 3. The combination with a valve and its seat,of an insert of solid lubricating material in one of said members, and arecess in one of said members for collecting the surplus material.

4. The combination with a rotary disk valve, of an insert of solidlubricating material in said valve, and a recess in the face of thevalve for the purpose described.

In testimony whereof we afiix our signatures in presence of twowitnesses.

CECIL HAMELIN TAYLOR. HOWARD E. COFFIN.

"Witnesses:

Lana M. Cains, ETHEL J. Essie.

